11665715020 has 12 divisors (see below), whose sum is σ = 24498001584. Its totient is φ = 4666286000.

The previous prime is 11665714999. The next prime is 11665715051. The reversal of 11665715020 is 2051756611.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291642856 + ... + 291642895.

It is an arithmetic number, because the mean of its divisors is an integer number (2041500132).

Almost surely, 2^11665715020 is an apocalyptic number.

11665715020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11665715020 is an abundant number, since it is smaller than the sum of its proper divisors (12832286564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11665715020 is a wasteful number, since it uses less digits than its factorization.

11665715020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583285760 (or 583285758 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 11665715020 in words is "eleven billion, six hundred sixty-five million, seven hundred fifteen thousand, twenty".